Home / 1,386,007.70-2,077,456.35-787,255.70

Finding the Fourth Proportional to 1,386,007.70, 2,077,456.35 and 787,255.70

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Solution

The fourth proportional to 1,386,007.70, 2,077,456.35 and 787,255.70 is: 1,180,000.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,007.70 : 2,077,456.35 = 787,255.70 : x
  2. Step 2: Convert to fraction form
    1,386,007.70/2,077,456.35 = 787,255.70/x
  3. Step 3: Cross multiply
    1,386,007.70x = 2,077,456.35 × 787,255.70
  4. Step 4: Simplify right side
    1,386,007.70x = 1,635,489,353,038.70
  5. Step 5: Solve for x
    x = 1,635,489,353,038.70/1,386,007.70
  6. Step 6: Final answer
    x = 1,180,000.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.